tosca.capabilities.Root: 
  description: The TOSCA root Capability Type all other TOSCA base Capability Types derive from
tosca.capabilities.Attachment:
  derived_from: tosca.capabilities.Root
tosca.capabilities.Node:
  derived_from: tosca.capabilities.Root
tosca.capabilities.Container:
  derived_from: tosca.capabilities.Root
  properties:
    num_cpus: 
      type: integer
      required: false
      constraints:
        - greater_or_equal: 1
    cpu_frequency:
      type: scalar-unit.frequency
      required: false
      constraints:
        - greater_or_equal: 0.1 GHz
    disk_size: 
      type: scalar-unit.size
      required: false
      constraints:
        - greater_or_equal: 0 MB
    mem_size: 
      type: scalar-unit.size
      required: false
      constraints:
        - greater_or_equal: 0 MB
tosca.capabilities.Endpoint:
  derived_from: tosca.capabilities.Root
  properties:
    protocol:
      type: string
      default: tcp
    port:
      type: PortDef
      required: false
    secure:
      type: boolean
      default: false
    url_path: 
      type: string
      required: false
    port_name: 
      type: string
      required: false
    network_name:
      type: string
      required: false 
      default: PRIVATE
    initiator:
      type: string
      default: source
      constraints:
        - valid_values: [ source, target, peer ]
    ports:
      type: map
      required: false
      constraints:
        - min_length: 1
      entry_schema:
        type: PortSpec
  attributes:
    ip_address:
      type: string
tosca.capabilities.DatabaseEndpoint:
  derived_from: tosca.capabilities.Endpoint
tosca.capabilities.Endpoint.Public:
  derived_from: tosca.capabilities.Endpoint
  properties:
    # Change the default network_name to use the first public network found
    network_name: PUBLIC
    floating:
      description: > 
        indicates that the public address should be allocated from a pool of floating IPs that are associated with the network.
      type: boolean
      default: false
      status: experimental
    dns_name:
      description: The optional name to register with DNS 
      type: string
      required: false    
      status: experimental
tosca.capabilities.Endpoint.Admin:
  derived_from: tosca.capabilities.Endpoint
  # Change Endpoint secure indicator to true from its default of false
  properties:
    secure: true
tosca.capabilities.Endpoint.Database:
  derived_from: tosca.capabilities.Endpoint 
tosca.capabilities.OperatingSystem:
  derived_from: tosca.capabilities.Root
  properties:
    architecture:
      type: string
      required: false 
    type:
      type: string
      required: false
    distribution:
      type: string
      required: false
    version:
      type: version
      required: false
tosca.capabilities.Scalable:
  derived_from: tosca.capabilities.Root
  properties:
    min_instances:
      type: integer
      default: 1
    max_instances:
      type: integer
      default: 1
    default_instances:
      type: integer
tosca.capabilities.network.Bindable:
  derived_from: tosca.capabilities.Node


tosca.capabilities.Container.Docker:
  derived_from: tosca.capabilities.Container
  properties:
    version:
      type: list
      required: false
      entry_schema: version
    publish_all:
      type: boolean
      default: false
      required: false
    publish_ports:
      type: list
      entry_schema: PortSpec
      required: false
    expose_ports:
      type: list
      entry_schema: PortSpec
      required: false
    volumes:
      type: list
      entry_schema: string
      required: false
tosca.capabilities.network.Linkable:
  derived_from: tosca.capabilities.Root